CN106014260B - A kind of offshore drilling equipment of low vibrations - Google Patents

Abstract

The invention discloses a low-vibration offshore drilling equipment, which includes an operation platform, one end of the upper surface of the operation platform is fixedly connected with a baffle, and the other end of the operation platform away from the baffle is provided with a motor. One end is connected to a transmission structure, the end of the transmission structure away from the motor is movably connected to a drilling device, the lower surface of the working platform is fixedly connected to a support structure, and the bottom of the support structure is fitted with a shock absorbing structure. This low-vibration offshore drilling equipment has changed the traditional rigid contact. The air bag of the drill bit reduces the vibration without reducing the work efficiency and improves the safety. A water bag is installed inside the support structure, and the water that is common in the sea is used. To absorb vibrations and achieve the effect of reducing vibration hazards, each pad is equipped with a water-air mixed shock-absorbing bag and a shock-absorbing layer, and a shock-absorbing pad is installed at the bottom of the pad, and the bottom of the pad is also equipped with pins.

Description

A Low Vibration Offshore Drilling Equipment

technical field

The invention relates to the technical field of maritime exploration, in particular to low-vibration offshore drilling equipment.

Background technique

An offshore drilling platform is an offshore structure mainly used for drilling wells. Top-mounted drilling, power, communication, navigation and other equipment, as well as safety and lifesaving and personnel living facilities. An indispensable means of offshore oil and gas exploration and development. In 1966, the first official offshore platform was established in the Bohai Sea. On December 31 of the same year, the first exploration well in the Bohai Sea was drilled and industrial oil flow was obtained on June 14, 1967, which opened the prelude to offshore oil exploration and development. By 1994, 570,000 kilometers of seismic survey lines had been collected offshore, 363 exploratory wells had been drilled, 88 oil and gas structures had been discovered, 1.188 billion tons of oil geological reserves and 180 billion cubic meters of natural gas geological reserves had been obtained, and the annual production had reached 6.47 million tons. At present, the annual oil production is 25 million tons, and the annual gas production is about 5 billion cubic meters. Offshore oil exploration and development requires a lot of investment and risks, but due to thick reservoirs, high reserve abundance, and high single-well production, the benefits are also high. At present, the development of offshore oil and gas resources is inseparable from the drilling platform, but the offshore drilling platform is very dangerous, especially when the vibration generated during the exploration of seabed rocks will be transmitted to the entire machine, which will lead to the instability of the machine, increase the risk, and reduce the safety factor.

Contents of the invention

The object of the present invention is to provide a low-vibration offshore drilling equipment to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solution: a low-vibration offshore drilling equipment, including an operation platform, one end of the upper surface of the operation platform is fixedly connected with a baffle, and the other end of the operation platform away from the baffle is set There is a motor fixedly connected to the upper surface of the work platform, one end of the rotor of the motor is movably connected to a transmission structure, the end of the transmission structure away from the motor is movably connected to a drilling device, and the lower surface of the work platform is fixedly connected to a support structure , the bottom of the supporting structure is covered with a shock-absorbing structure.

Preferably, the transmission structure includes a first pulley, a belt, a second pulley, a transmission shaft, a gear and a rotating body, the first pulley is connected to one end of the motor rotor, and the first pulley moves with the second pulley through a belt connected, the second pulley is movably connected with the gear through the transmission shaft, and the gear is meshed with the rotating body.

Preferably, the drilling device includes a drill bit, a cutting tooth, a casing, an air bag and a spring, the cutting tooth is fixedly connected to the bottom end of the rotating body, the drill bit is movably connected to the axis of the rotating body, and the The casing is set on the side of the drill bit, the top of the casing is movably connected with the bottom of the rotating body, and a spring and an air bag are sequentially arranged between the casing and the drill bit from top to bottom.

Preferably, the support structure includes a first connecting piece, an upper bracket, a second connecting piece, a lower bracket and a water bag, the top of the upper bracket is fixedly connected to the bottom surface of the working platform through the first connecting piece, and the first The connecting piece is movably connected to the lower surface of the working platform, the bottom of the upper bracket is connected to the top of the lower bracket through the second connecting piece, and water bags are arranged inside the upper bracket and the lower bracket.

Preferably, the shock-absorbing structure includes a shock-absorbing bag, a shock-absorbing layer, an outer wall, a shock-absorbing pad and pins, the shock-absorbing bag is movably connected to the outside of the lower bracket, and the outside of the shock-absorbing bag is covered with a shock-absorbing The shock-absorbing layer is fixedly connected to the inside of the outer wall, the bottom of the outer wall is provided with a shock-absorbing pad, and the bottom of the shock-absorbing pad is provided with pins.

Compared with the prior art, the beneficial effect of the present invention is: the low-vibration offshore drilling equipment changes the traditional rigid contact, utilizes the airbag of the drill bit to reduce vibration without reducing work efficiency, improves safety, and supports The interior of the structure is equipped with water bladders, which use common water at sea to absorb vibrations and reduce vibration hazards. The traditional foot pads are optimized at the bottom of the support structure, and each foot pad is equipped with water-air mixed shock-absorbing bladders and Shock-absorbing layer, and a shock-absorbing pad is installed at the bottom of the feet, pins are also installed on the bottom of the shock-absorbing pad, springs and telescopic columns are arranged inside the pins, and the outer wall of the pins is elastic material.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the drilling device of the present invention;

Fig. 3 is a schematic diagram of the supporting structure of the present invention;

Fig. 4 is a schematic diagram of the shock absorbing structure of the present invention.

In the figure: 1 working platform, 2 baffle plate, 3 motor, 4 transmission structure, 41 first pulley, 42 belt, 43 second pulley, 44 transmission shaft, 45 gear, 46 rotating body, 5 drilling device, 51 drill bit, 52 cutting teeth, 53 casing, 54 air bag, 55 spring, 6 support structure, 61 first connector, 62 upper bracket, 63 second connector, 64 lower bracket, 65 water bag, 7 damping structure, 71 damping Shock capsule, 72 shock-absorbing layers, 73 outer walls, 74 shock-absorbing pads, 75 pins.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-4, the present invention provides a technical solution: a low-vibration offshore drilling equipment, including an operation platform 1, one end of the upper surface of the operation platform 1 is fixedly connected with a baffle 2, and the operation platform 1 is far away from the baffle 2 The other end is provided with a motor 3 fixedly connected to the upper surface of the work platform 1, and one end of the rotor of the motor 3 is movably connected with a transmission structure 4, and the transmission structure 4 includes a first pulley 41, a belt 42, a second pulley 43, a transmission shaft 44, Gear 45 and rotating body 46, the first pulley 41 is connected with one end of motor 3 rotor, the first pulley 41 is movably connected with the second pulley 43 by belt 42, the second pulley 43 is movably connected with gear 45 by transmission shaft 44, and gear 45 Engaged with the rotating body 46, the end of the transmission structure 4 away from the motor is movably connected with the drilling device 5, the structure of the transmission structure 4 can ensure that the power is transmitted to the drill bit 51, and the drill bit 51 is fully driven, and the transmission by the belt 42 is simple and convenient. The failure rate is reduced, the maintenance cost is saved, and the efficiency of production is improved. The drilling device 5 includes a drill bit 51, a cutting tooth 52, a casing 53, an air bag 54 and a spring 55, and the cutting tooth 52 is fixedly connected to the bottom of the rotating body 46. end, the drill bit 51 is flexibly connected to the axis of the rotating body 46, the casing 53 is set on the side of the drilling bit 51, the top of the casing 53 is flexibly connected to the bottom of the rotating body 46, and the space between the casing 53 and the drilling bit 51 is from top to bottom A spring 55 and an air bag 54 are arranged in turn. The existence of the cutting teeth 52 can speed up the drilling speed and stably cut objects. The lower surface of the working platform 1 is fixedly connected with a support structure 6, and the support structure 6 includes a first connecting piece 61 , an upper bracket 62, a second connector 63, a lower bracket 64 and a water bag 65, the top of the upper bracket 62 is fixedly connected to the bottom surface of the work platform 1 through the first connector 61, and the first connector 61 is movably connected to the work platform 1 The bottom surface of the upper bracket 62 is connected to the top of the lower bracket 64 through the second connecting piece 63. The inside of the upper bracket 62 and the lower bracket 64 is provided with a water bladder 65. The addition of the water bladder 65 can reduce vibration and protect the water in the sea. It is rich in resources and can save transportation costs. The equipment inside the support structure 6 can help the machine to stabilize better, reduce the vibration generated by drilling, and ensure the stability of the entire machine, improve the safety factor, and ensure the safety of workers. The support structure 6 The bottom is covered with a shock-absorbing structure 7, and the shock-absorbing structure 7 includes a shock-absorbing bag 71, a shock-absorbing layer 72, an outer wall 73, a shock-absorbing pad 74 and pins 75, and the shock-absorbing bag 71 is movably connected to the outside of the lower bracket 64 for shock-absorbing The outer casing of the capsule 71 is provided with a shock-absorbing layer 72, the shock-absorbing layer 72 is fixedly connected to the inside of the outer wall 73, the bottom of the outer wall 73 is provided with a shock-absorbing pad 74, the bottom of the shock-absorbing pad 74 is provided with a pin 75, and the shock-absorbing pad 74 The layer-by-layer structure can reduce the impact of vibration and fluctuation on the machine, so that the vibration force is gradually offset. The elastic device and telescopic rod are added inside the pin 75, which can offset the vibration of the machine, but it will not be too obvious. Fragile, which leads to the instability of the machine itself.

Working principle: use the shock absorbing structure 7 composed of shock absorbing bag 71, shock absorbing layer 72, outer wall 73, shock absorbing pad 74 and pins 75 to reduce the impact of seawater fluctuation on the entire drilling equipment, between the drill bit 51 and casing 53 Fill the air bag 54 between them, reduce the vibration when the drill bit 51 is broken, and protect the machine.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (5)

1. A low-vibration offshore drilling equipment, comprising an operation platform (1), one end of the upper surface of the operation platform (1) is fixedly connected with a baffle (2), and the operation platform (1) is far away from the baffle (2) ) is provided with a motor (3) fixedly connected to the upper surface of the work platform (1), and one end of the rotor of the motor (3) is movably connected with a transmission structure (4), which is characterized in that: the transmission structure (4 ) is movably connected to a drilling device (5) at one end away from the motor, and a supporting structure (6) is fixedly connected to the lower surface of the working platform (1), and a shock-absorbing structure (7) is set on the bottom of the supporting structure (6) ). 2. The low-vibration offshore drilling equipment according to claim 1, characterized in that: the transmission structure (4) includes a first pulley (41), a belt (42), a second pulley (43), a transmission Shaft (44), gear (45) and rotating body (46), the first pulley (41) is connected to one end of the rotor of the motor (3), and the first pulley (41) is connected to the second pulley through a belt (42) The pulley (43) is movably connected, the second pulley (43) is movably connected with the gear (45) through the transmission shaft (44), and the gear (45) meshes with the rotating body (46). 3. The low-vibration offshore drilling equipment according to claim 1, characterized in that: the drilling device (5) includes a drill bit (51), cutting teeth (52), casing (53), air bag (54) and spring (55), the cutting teeth (52) are fixedly connected to the bottom end of the rotating body (46), the drill bit (51) is movably connected to the axis of the rotating body (46), and the guard The casing (53) is set on the side of the drill bit (51), and the top of the casing (53) is flexibly connected with the bottom of the rotating body (46). A spring (55) and an air bag (54) are arranged in sequence below. 4. The low-vibration offshore drilling equipment according to claim 1, characterized in that: the support structure (6) includes a first connecting piece (61), an upper bracket (62), a second connecting piece (63 ), the lower bracket (64) and the water bladder (65), the top of the upper bracket (62) is fixedly connected with the bottom surface of the work platform (1) through the first connecting piece (61), and the first connecting piece (61 ) is movably connected to the lower surface of the work platform (1), the bottom of the upper bracket (62) is connected to the top of the lower bracket (64) through the second connecting piece (63), and the upper bracket (62) is connected to the lower bracket (64) is provided with a water bag (65) inside. 5. A low-vibration offshore drilling equipment according to claim 1, characterized in that: the shock-absorbing structure (7) includes a shock-absorbing capsule (71), a shock-absorbing layer (72), an outer wall (73), Shock-absorbing pads (74) and pins (75), the shock-absorbing capsule (71) is movably connected to the outside of the lower bracket (64), and the exterior of the shock-absorbing capsule (71) is covered with a shock-absorbing layer (72) , the shock-absorbing layer (72) is fixedly connected to the inside of the outer wall (73), the bottom of the outer wall (73) is provided with a shock-absorbing pad (74), and the bottom of the shock-absorbing pad (74) is provided with pins (75).